my Ipod is no longer recognized on my itunes

Try this:

http://support.apple.com/kb/TS1410

I had the same problem and read here and some other places hours of solutions that part of the worked and part didn't.

Eventually I tried something simple and it worked for me:

1- Go to the WI-FI icon (up at the menu bar, at the top of the screen) (-I am assuming that you don't know where it is, if you do, just go to 2- there is a triangle with bars and rounded edge. This is the WIFI icon).

2- Click on it and then disable the WIFI connection (click on "Turn WI-FI off").

3- Wait some seconds and turn it on again.

4- My iPod appears in the iTunes side bar now.

That's all I do and, as I said, it works for me.

Hope it will work for you too.

GM